Well drilling reaming device

• Main Authors: PENG SONG, WANG JUN, HE KUN, LUO YONG, HOU FUXIANG, WU QIANLI, XU BINGGUI, ZHANG YANPING, FENG LAI, LIANG GUOHONG, CAO CHUAN
• Format: Patent
• Language: Chinese; English
• Published: 09.04.2024
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The invention relates to the technical field of hole reaming devices, in particular to a well drilling hole reaming device. One end of a mounting pipe of the device is detachably connected with one end of a mounting column, and the other end of the mounting pipe is detachably connected with one end of a drill pipe; a drill bit is fixedly mounted at the other end of the drill pipe; an expansion blade capable of expanding outwards in the radial direction of the installation pipe is arranged in the installation pipe, and a reaming plate assembly capable of expanding outwards in the radial direction of the drill body pipe is arranged in the drill body pipe. The expanded maximum diameter of the expanding blade and the reaming plate assembly is larger than the diameter of the drill bit. According to the device, the expanding blade and the reaming plate assembly are arranged up and down in the vertical direction and can conduct reaming at two positions respectively, and the reaming efficiency and quality of a drilli